Multiple carbureter.



No. 879,380. PATENTED FEB. 18, 1908.

G. R. GREUTER. MULTIPLE GARBURETER.

APPLICATION FILED 32.25, 1907.

3 SHEETSSHEET 1.

MULTIPLE OARBURETER. APPLICATION FILED FEB. 25. 1907.

PATENTED FEBJ18, 1908. G. R. GREUTER.

3 SHEETS-SHEET 2.

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Q/Vifn 20sec attuned No. 879,380. PATENTED FEB. 18, I908 0, R. GREUTER.

MULTIPLE OARBURETER.

APPLIGATION FILED FEB. 25, 1907.

3 SHEETS-SHEET 3.

Pi id llil ll NULTKPLE CARB'URETER.

No. erases.

Specification of Letters Patent.

Patented Feb. 18, 1%08.

Application filed February 25.1907. Serial Ho. 359.279.

To all whom it may concern:

Be it known that 1, CHARLES R. Genome,

citizen of the United States of America, "residing at Vv ilkes-Barre, Pennsylvania, have invented new and useful Improvements in Multiple Carburetors, of which the following is a specification.

This invention relates to an improved carbureter of the multiple type designed to provide means for permitting the throttling of the explosive mixture and at the same time maintain the proper proportion of air and oil, whereby a variable quantity of explosive mixture may be introduced into the motor according to the needs thereof without changing the proper proportion of the two elements of the mixture.

To this end the present invention primarily contemplates an improvement in the multiple type or carburetors or vaporizers whereby certain of the oil spray tubes are efiectually closed or cut oil when the vents communicating therewith are closed.

In other words the present invention has in view, as a principal object thereof, the provision of a simple and practical form of automatic cut oil device for certain of the oil spray. tubes, so that when the same are not intended to be in action the outlet of oil or vapor therefrom is stopped or cut oil. This is of essential importance for the reason that heretofore in the multiple type of carbureters or vaporizers the s ray tubes or jets which were not suppose to be in action, have been more or less acted upon by the suction of the engine with the result of causing such spray tubes to overflow and waste a large amount of gasolene. This is entirely obviated through the present invention by equipping what may be termed the supplemental individual Vaporizers with an automatic cut-oil" or stopper for the spray tube thereof.

With these and many other objects in view which will more readily appear as the nature of the invention. is better understood, the same consists in the novel construction, combination, and arrangement o'fparts hereinafter more fully described, illustrated and claimed.

The essential features of the invention involved in carrying out the objects above indicated are necessarily susceptible to structural modification without departing from the spirit or scope of the invention, but a pre ferred embodiment thereof is shown in the accompanying drawin s, in which:

Figure 1 is a side elevation of a multiple carburetor embodying the present invention. Fig. 2 is a top plan view thereof. Fig. 3 is a horizontal sectional view on the line 3-3 of Fig. 1. Fig. 4 is an end elevation of the carbureter. Fig. 5 is a vertical sectional view through the primary individual vaporizer, the line of section being on the line 5-5 of Fig. 4. Fig. 6 is a similar view on the line 66 of Fig. 4. Fig. 7 is a similar view on the line 7 7 of Fig. 4.

Like references designate corresponding. parts in the several figures of the drawings.

The present invention embodies in its general organization a vaporizer body designated in its entirety by the reference character 1, and which essentially comprises a. cylindrical valve casing 2 and a plurality or series of individual vaporizersarranged at. the side of the valve casing, and designatedrespectively by the reference characters A,

B, and C, the vaporizer A-constituting what may be termed a primary vaporizer which is always first thrown into action and used with or without the other Vaporizers, while said latter vaporizers constitute what may be characterized as supplemental individual Vaporizers which are brought into play according to the quantity of mixture which is needed for the engine. The several vapor- 'izers A, B, and C are arranged in a series,

and are of duplicate construction, as each of the same consists of a mixing tube 3 and an oil spray tube 4. projecting into the mixing tube 3 within one end thereof and provided in its inner end with a jet orifice 5 while the outer end of each oil spray tube is coupled to and projects within an oil supply ranged exterior to the vaporizer ody and connected with the usual source of supply for the hydrocarbon. The lower end of each oil spray tube 5 within theoil sup ly pipe 6 has associated therewith the va ve point 7 of a needle controlling valve 8 sub' serving the usual functions in connection therewith for regulating the fiow of hydrocarbon through the tube 4- to the jet orifice 5 thereof.

In carrying out the present invention, it is preferable to associate with the oil sup ly pipe6, a pipe connection 9 with a float valve. chamber 10 of well known construction and function and which is designed to keep the pipe 6 ar- 9 level of the liquid hydro-carbon up UU or about the line L indicated on the drawings, which line is in plane just below the plane of the orifices thereby holding the hydrocarbon or oil at a lvel where it is easily drawn out the air suction and vaporized thereby in t .ie mixing tube 3.

The mixing tube 3 for the vaporizer A pierces the side of the cylindrical valve casing 2 through the feeding port 11, the tube 3 for the vaporizer B in rough the feeding port 12, and the tube 3 for the va 'lOIlZfiI C through the feeding port 13, and all of these several ports are designed to be covered and uncovered by the tubular throttle valve 15. This valve is of a hollow cylindrical form, being open at one end to provide air circulation therethrough and the interior sides of which constitute a circulating chamber 16 which is in communication with a series of ventin ports 17, 1S, and 19, which are successive y of different sizes and respectively 006 crate with the feeding ports 11-, 12, and 13 .or the several vaporizers A, B, and C.

The tubular throttle valve 15 has a journal it within the base of the valve casing 1 and has attached to its closed end a valve spindle 20 mounted in a bearing 21. provided at one end of the casing 1. and having connected to its outer extremity a rocker arm 22 cooperating' with an adjustable stop screw 23 and also having connected therewith an operating rod 23 leading to the steering wheel control. The said throttle valve is also controlled from a suitable foot controlled connection 24 having a rack section 25mesl1ing with a gear section 26 on the body of the valve 15.-

A distinctive and prominent feature of the present invention resides in associating with the oil spray tube 4 of each supplemental vaporizer B and O a cut-off or stoppering device which'essentially consists of a cut-off stopper or stopper pin 27, slidably mounted in a guide bearing 28 formed in the vaporizerbody in the longitudinal plane of said oil spray tube 4, and automatically controlled operating means for said stopper pin. in the preferable form of the invention, the auto matically controlled operating means for the stopper pin 27 comprise a rocking operating lever 29 pivotally mounted intermediate its ends, as at 31, upon a bearing support 32 on the valve casing 2 and carrying at one end an adjustably mounted inwardly rojecting' tappet- 33, and at its opposite end provided with a fork 34 loosely embracing the. outer end of the stopper pin 27 between the adjustable head nut 34 of said pin and a buffer spring 35 mounted on the said pin. At the pivotal support 31 of each rocking operating lever 29 is arranged an opening or retracting spring 36 coiled about the pivotal support for the operating lever and having its sepa rate spring arms 37 and 38 respectively engaged with a fixed abutment and with the end of the lever 29 which is connected with the reciprocal stopper pin 27; The tension of the said spring 36 is exerted ina direction to provide for normally lifting or retracting the stopper pin in a direction away from the oil spray tube with which it cooperates.

The inwardly projecting tappet 33 at one end of each rocking operating lever 29 operates through an opening 39 in the wall of the casing 2, and is adapted to be engaged by the peripheral surface of the throttle valve 15 and also to drop into a clearance channel or recess 40 provided for its reception in the surface of the throttle valve body.

The cut-oil or stopper equipment for each of the vaporizers B and C is exactly the same and the action is the same. However, in this connection, it will be observed that the said cut-off or stopper devices for each of the sup-. plemental va .orizers are so arranged that the passage 0 the hydro-carbon through the tubes 4 is entirely cut-oil andsealed from the influence of the engine suction when the ventin; ports 18 and 19 for said va orizers are closed. It will be observed that t e cut-off or stopper device for each vaporizer B and G has the stopper pin thereof arranged in axial alinement with'the oil spray tube 4 and is adapted to close directly over the spray jet or jet orifice 5 of said tube when the throttle valve is turned to a position for closing the venting port therein, which brings the main cylindrical surface of the valve against the tappet 33 and cams the same outward. When the throttle valve is turned to bring the venting ports 18 and l 9 into communication with the mixing tubes of the Vaporizers B and C, the clearance channels .or recesses &0 are brought beneath the tappets 33 so that the springs 36 are free to retract the stopper pins and lift the same to positions uncovering the s ray tubes with which. they cooperate. in t e general operation of the carbureter, it will be understood by those familiar with the art that the valve 15 is turned to first throw the vaporizer A into action and afterwards vaporizer B, and finally vaporizer C, during which operation vaporizer A remains wide open while B and C are thrown into action, and B remaining wide open while C is thrown into action.

' This construct-ion also necessarily admits of a wide range of adjustment to permit varying quantities of the explosive mixture to pass to the engine, While at all times there is maintained a pro er proportion between the two elements of t 1e mixture by reason of the fact that the feed of lir uid and air increases proportionately upon t e progressive movement of the valve to open the several ports 17, 18, and 19 and vice versa.

By reference to Fig. 3 of the drawings the circulation of the air and hydrocarbon through the Vaporizers and to the engine will Referring to said figure it will be apparent.-

served that the air is taken in through beo , the outer ends of said vaporizers and carried to the hydrocarbon admission valves, at which point the air and hydrocarbon commingles, and from thence it enters and passes through the chamber 16, to the'en'gine, it being understood that any suitable or preferred pipe coupling may be employed which will provide a proper pipe connection with the outer opfnlend portion of thecasing of the valve 15. c a1m:

'1. A carbureter comprising a plurality of Vaporizers, a single throttle common to the several va orizers, and se arate cut-ofis for the oil fee for certain of t e vaporizers said cut-ofis being operated by the throttle. M

2. A carbureter comprising aplurality of Vaporizers each consistlng of a mixing tube and an oil s ray tube entering the latter, asingle thrott e', cut-offs arranged to stopper" certain of the oil spray tubes, and means for operating said cut-ofis from the throttle.

3. A carbureter comprising a plurality of Vaporizers, a throttle common to the severalvaporizers, and cut-off devices for the oil feed for certain of the Vaporizers and arranged to cut off the oil flow when the Vaporizers are throttled.

4. Ina carbureter comprising a plurality of Vaporizers each ,lconsisting of a mixing tube and an oil spraytuhe in the latter, a rotary throttle valve common to theseveral Vaporizers, and cut-off devicescooperating with certain of the Vaporizers", each of said cutoii devices having" a stopper movable over the orifice of the spray tube and an o crating lever movable in one directio'nby t 1e throttle valve.

5. A carbureter comprising a plurality of Vaporizers each consisting of a mixing tube and an oil spray tube in the latter, a rotary throttle valve common to the several vapo- 'rizers, and cut-off devices for certain of the vaporizers, each of said cut-off devices consistin of a reciprocating stopper movable ed in the casing and having a venting port and also provided in its surface with a clearance recess, and cut-off device consisting of a reciprocating stopper pin working in the mixing tube over the oil spray tube, a rocking operating lever having an operative conneetion at one end with said stopper and carrying at its opposite end a tappet having an "'ibperating engagement with the throttle valve and also adapted to drop into said clearance recess, and a retracting spring arranged to normally rock the lever in one direction. and hold the cut-off device in'an open position.

In testimony whereof,- I have signed my name to this specification in the presence of two subscribing witnesses, this 20th day of :1

February 1907; CHARLES R. ensures Witnesses: WM. SHARPE,

ALEXANDER E L. 

